Do 80% of Options Expire Worthless(옵션의 80%가 무의미하게 만료됩니까?) BySteve Burns A common misunderstanding among new option traders is that 80% to 90% of all option contracts expire worthless, so a seller of option premium will have a higher win rate than a trader that buys options. This belief misinterprets a statistic published by the Chicago Board Options Exchange (CBOE) that only 10% of option contra..